Power Supplies - Showing 1969 - 1992 of 17940 Products
Refurbished: For PWS-1K28P-SQ 1280W Power Server
- Model #: 703454720165
- Item #: 9SIVB8UKAJ6475
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1010W Switching Power Supply G1W-3A12
- Model #: 726099222368
- Item #: 9SIVB8UKCU6252
- Return Policy: Magicpower Return Policy
Refurbished: For Advantech 4U MRW-6400P Redundant Power Supply Server
- Model #: 753525949810
- Item #: 9SIVB8UKAA0151
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for TC4600 TC6600 Server Power Supply DS 2000-3 - 002 2000W
- Model #: 716837097884
- Item #: 9SIVB8UKX62969
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Gold 1U 400W Switching Power Supply DPS-400AB-12F ...
- Model #: 744623311623
- Item #: 9SIVB8UKD12244
- Return Policy: Magicpower Return Policy
Refurbished: For AB 5.7A 480V Power Supply For 22-RF5P7-AS
- Model #: 753525991017
- Item #: 9SIVB8UKAA8035
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 750W Switching Power Supply DPS-750XB A DPS-750XB B ...
- Model #: 744623299877
- Item #: 9SIVB8UKCU6644
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 400W DPS-400AB-12A Small 1U flex computer power supply
- Model #: 716837087892
- Item #: 9SIVB8UKX59614
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for M1F-5500V M1Z-5500V S1M-5500V M1F-5400V M1Z-5400V Power ...
- Model #: 792597709342
- Item #: 9SIVRWKKXD3991
- Return Policy: Nytke team Return Policy
Refurbished: for Power Supply uMP4C-S2I-S2M-S2Q-00 73-954-0142
- Model #: 753525986907
- Item #: 9SIVB8UKAA8695
- Return Policy: Magicpower Return Policy
Refurbished: 241114.601 FLAYPACK 2880 48V 2880W For Eltek Power Supply
- Model #: 724780182410
- Item #: 9SIVB8UKA98902
- Return Policy: Magicpower Return Policy
Refurbished: For XW8400 Power Supply DPS-825AB B 405351-003 408947-001
- Model #: 726727728293
- Item #: 9SIVRWKKXA2643
- Return Policy: Nytke team Return Policy
Refurbished: New For 48V 50A Power Supply For SMR3004D
- Model #: 753525991598
- Item #: 9SIVB8UKAA8119
- Return Policy: Magicpower Return Policy
Refurbished: For PE1800 Server Redundant Power Supply DPS-650BB A FD732 PE1800 Power ...
- Model #: 752804573418
- Item #: 9SIVRWKKXB1733
- Return Policy: Nytke team Return Policy
Refurbished: For MPN1-6300F power supply, switching power supply 300W
- Model #: 726727776683
- Item #: 9SIVRWKKXA7169
- Return Policy: Nytke team Return Policy
Refurbished: For H3C Huasan AC-PSR350-A10-H3 PSR350-A AC Power Module
- Model #: 722954733444
- Item #: 9SIVSY0KUT1722
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For Equallogic PS6210 Controller DCY2N 0KT7XY 0KK95M 0MYKFF 0DCY2N
- Model #: 753525933604
- Item #: 9SIVB8UKA99187
- Return Policy: Magicpower Return Policy
Refurbished: pro 3330 3340 3380 3381 Power Supply 300W DPS-300AB-72 A 667892-003 ...
- Model #: 753525990355
- Item #: 9SIVB8UKAA7825
- Return Policy: Magicpower Return Policy
Refurbished: For NEC i5 host, power supply DPS-120TB A MSPSU120N-DMA
- Model #: 726727728774
- Item #: 9SIVRWKKXA2963
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 14 pin 625W P410 P520C power supply FSP625-50ETN 5P51D76970
- Model #: 716837092094
- Item #: 9SIVB8UKX61381
- Return Policy: Magicpower Return Policy
Refurbished: DL380 G6 G7 DC 1225W Power Supply SP668 444049-001 HSTNS-PC01 ...
- Model #: 753525935950
- Item #: 9SIVB8UKA99423
- Return Policy: Magicpower Return Policy
Refurbished: D12-240P2A Universal PCC002 PS-4241-2HF DPS-240AB-3 B Small Power ...
- Model #: 722954987861
- Item #: 9SIVB8UKAA6475
- Return Policy: Magicpower Return Policy
Refurbished: For AT power supply SPI-300G SPI-250G SD-250AT power supply
- Model #: 752804579441
- Item #: 9SIVRWKKXB2444
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 250W Power Supply PC40N250EV
- Model #: 759950248573
- Item #: 9SIVB8UKDF9505
- Return Policy: Magicpower Return Policy
Tips for Buying a Computer Power Supply Unit (PSU)
Introduction
A computer power supply is one of the most crucial components in a computer, as it is responsible for providing stable and regulated power for the system. If you are shopping for a computer power supply, finding the ideal one will require you to consider several important criteria. Those criteria include the size and form factor of the case, the wattage requirement of the system, efficiency, and your internal cabling preference.
Size Standards
Computer power supplies are available in a variety of different sizes and form factors. It is crucial that the power supply unit (PSU) you select matches the size requirements of your case and motherboard. If you have a Mini ITX case for example, you cannot utilize a standard ATX power supply. For more information about power supply form factors, see below.
- ATX
The standard power supply size that will fit most mid-size and full-size tower cases. Some micro ATX cases can utilize ATX power supplies as well. - Mini ITX
Mini ITX power supplies are designed specifically for mini ITX systems but may also fit other small form factor computer cases. - SFX
SFX computer power supplies are smaller than standard ATX PSUs and are meant for micro ATX and other small form factor computer cases. - TFX
Another small form factor computer power supply that is thinner to fit micro ATX, Mini ITX, and other smaller systems.
Wattage
A computer power supply’s wattage rating is a measurement of how much power it can provide to the hardware. When shopping for a power supply, you need to consider how much power your computer system requires. To calculate your system’s power requirement, add up the power draw for all the components.
Start with the motherboard and processor, and then include graphics cards, system memory, storage devices, and other expansion cards. For an even better estimate, you should include USB devices, internal fans, and other accessories. Once you have your estimate, try to find a computer power supply that is capable of at least that. For a larger safety margin, you should get a PSU that is well above that minimum.
Cable Management
There are two cable management options for computer power supplies, modular and non-modular. Modular cabling allows you to connect and disconnect internal power cables from the power supply itself, so you can avoid having unused cables and connectors dangling inside the case. Computer power supplies that feature modular cabling typically cost more than those without it.
Efficiency
The efficiency of a computer power supply is a ratio of how much power it provides and how much power it draws. For instance, a power supply that provides 200 watts of power but pulls 400 watts from a power outlet has a 200/400 or 50% efficiency ratio. The more efficient your computer power supply is, the less it will cost you to operate.
One metric you can use to gauge efficiency is what level of 80 PLUS® certification a power supply has, if it any. The different levels of 80 PLUS certification include 80 PLUS, 80 PLUS Bronze, 80 PLUS Silver, 80 PLUS Gold, 80 PLUS Platinum, and 80 PLUS Platinum. The most basic certification is 80 PLUS, which indicates an efficiency rating of at least 80%. The other certifications rank from Bronze to Titanium, with the latter being the highest attainable. If computer power supply efficiency is a big concern for you, try to find one with a high level of 80 PLUS certification.
